You can run 50 watts on GMRS
https://en.wikipedia.org/wiki/General_M ... io_Service GMRS
462.5500 MHz 15 50 W 20 kHz (2)(5)
462.5750 MHz 16 50 W 20 kHz (2)(5)
462.6000 MHz 17 50 W 20 kHz (2)(5)
462.6250 MHz 18 50 W 20 kHz (2)(5)
462.6500 MHz 19 50 W 20 kHz (2)(5)
462.6750 MHz 20 50 W 20 kHz (2)(5)(7)
462.7000 MHz 21 50 W 20 kHz (2)(5)
462.7250 MHz 22 50 W 20 kHz (2)(5)
467.5500 MHz 50 W 20 kHz (3)(5)
467.5750 MHz 50 W 20 kHz (3)(5)
467.6000 MHz 50 W 20 kHz (3)(5)
467.6250 MHz 50 W 20 kHz (3)(5)
467.6500 MHz 50 W 20 kHz (3)(5)
467.6750 MHz 50 W 20 kHz (3)(5)
467.7000 MHz 50 W 20 kHz (3)(5)
467.7250 MHz 50 W 20 kHz (3)(5)
Table Notes
(1) Shared FRS and GMRS simplex.
(2) Shared FRS and GMRS simplex; GMRS repeater output.
(3) GMRS repeater input. The output frequency of this repeater input is the input frequency minus 5 MHz.
(4) FRS transmissions are limited to bandwidth of 11 kHz with a transmitter deviation of +/- 2.5 kHz. Channels are on 12.5 kHz centers.
(5) GMRS transmissions may have a bandwidth of 16 kHz with a transmitter deviation of +/- 5.0 kHz. Channels are on 25 kHz centers.
(6) GMRS transmissions are limited to a bandwidth of 11 kHz with a transmitter deviation of +/- 2.5 kHz. Channels are on 12.5 kHz centers.
(7) National GMRS calling channel (CTCSS tone 141.3 Hz).